The word "hospital" comes from Latin and originally meant "guest". It was originally built for people to take refuge, and there is also a lounge for the comfort of visitors. Later, it gradually became a professional institution for meeting human medical needs and providing medical services and a service place for treating patients.

　　my country is one of the countries that established hospitals earlier. As early as the Western Han Dynasty, when the plague was prevalent in the Yellow River area, Emperor Wu of the Han Dynasty, Liu Che, set up treatment centers in various places, equipped with doctors and medicines, and provided free treatment for the common people. In the second year of Yuanshi (2 AD) of Emperor Ping of the Han Dynasty, "the sick should buy medicines in empty houses", just like today's isolation hospitals. During the Song and Ming dynasties, the hospital organization gradually improved. At that time, the official hospital was called "Anjifang", the privately run "Nursing Home", "Shouanyuan", and the "Sales Children Bureau" run by charitable organizations recruited and treated patients by category. The hospital model is constantly changing. Today, we are used to the existence of hospitals, which are indispensable facilities in our daily life.

　　Similarly, the insulation of air-conditioning ducts is already an indispensable construction process in current buildings. Among Uetersen's many projects, there are also cases from hospitals - the case of formaldehyde-free centrifugal glass wool in Ya'an Hospital.

　　The formaldehyde-free glass wool brings a clean, safe and dust-free space to Ya'an Hospital. At the same time, the pores of the glass wool can absorb the noise generated by the operation of the air duct, which has the function of sound absorption and noise reduction. Uetersen formaldehyde-free glass wool also uses a three-in-one reinforced aluminum foil veneer, which can tightly wrap the air duct and prevent water vapor from penetrating into the wrapping material, thereby extending the service life of the glass wool.

　　Formaldehyde, which causes harm to the human body in life, can be said to be everywhere. Panel furniture and wooden floors installed in new homes; children's clothing, non-iron shirts in clothing, fast food noodles, rice noodles, blister squid, sea cucumbers, car interiors in travel, etc. It is not difficult to see that formaldehyde is everywhere in clothing, food, housing and transportation - the four important things in our daily life. As a common chemical substance, formaldehyde is found in glues, adhesives and other substances, which is convenient for life and production, but also has certain safety hazards. Similarly, in building materials, formaldehyde is often accompanied by adhesives. As the key place for diagnosis and treatment of patients, hospitals have stricter requirements on air and environmental protection. Excessive presence of formaldehyde may also aggravate the respiratory tract or cause blood diseases. The use of Uetersen formaldehyde-free centrifugal glass wool keeps the air in the medical environment safe and reduces the production of toxic and harmful substances such as formaldehyde and phenol.

　　Formaldehyde-free glass wool uses natural ore as the raw material of glass wool, which is rich in silicon and has A1 grade non-combustible and fireproof properties. Uetersen formaldehyde-free glass wool uses imported green adhesive in the production. Formaldehyde, as a substance with low boiling point and volatile at high temperature, usually releases residual formaldehyde when it is produced with the adhesive at high temperature. The emergence of formaldehyde-free glass wool products avoids "invisible killers" such as formaldehyde from endangering health.

　　Uetersen has strict environmental protection control of products, and has many application solutions in formaldehyde-free glass wool product series. Hospitals are particularly strict on the quality control of thermal insulation materials. Uetersen's formaldehyde-free glass wool is environmentally friendly and non-toxic. Green meets the requirements of medical equipment space and the pharmaceutical industry. Ya'an Hospital chooses Uetersen's glass wool products, which is also a recognition of the Uetersen brand.